Other eosinophilia

This code signifies an elevated eosinophil count in the blood or tissues that is not otherwise specified as allergic, drug-induced, or hereditary. It indicates a general increase in these white blood cells, often associated with various underlying conditions.

Use this code when documentation confirms eosinophilia without a more specific etiology identified, such as parasitic infection, allergic reaction, or drug hypersensitivity. It is appropriate for idiopathic eosinophilia or when the cause is under investigation but not yet determined.

• Do not use this code if a more specific type of eosinophilia (e.g., allergic, drug-induced) is documented; instead, use the appropriate subcategory.
• Always sequence this code after the definitive diagnosis or underlying condition causing the eosinophilia, if known.
• Ensure the medical record clearly states an elevated eosinophil count and lacks further specificity regarding the cause.